Rainbow-electronics MAX6659 Manual do Utilizador descarregar pdf (Página 5)

MAX6657/MAX6658/MAX6659

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MAX6657

MAX6658

MAX6659

NAME FUNCTION

11V

Supply Voltage Input, +3V to +5.5V. Bypass to GND with a 0.1µF capacitor. A 200Ω

series resistor is recommended but not required for additional noise filtering. See

Typical Operating Circuit.

2 3 DXP

Combined Remote-Diode Current Source and A/D Positive Input for Remote-Diode

Channel. DO NOT LEAVE DXP FLOATING; connect DXP to DXN if no remote diode

is used. Place a 2200pF capacitor between DXP and DXN for noise filtering.

3 4 DXN

Combined Remote-Diode Current Sink and A/D Negative Input. DXN is internally

biased to one diode drop above ground.

46OVERT1

Overtemperature Active-Low Output, Open-Drain. Output is logic low only when

temperature is above the software programmed threshold.

5 7, 8 GND Ground

69ALERT

SMBus Alert (Interrupt) Active-Low Output, Open-Drain. Asserts when temperature

exceeds user-set limits (high or low temperature). Stays asserted until acknowledged

by either reading the Status register or by successfully responding to an Alert

Response address. See

ALERT

Interrupts.

7 12 SMBDATA SMBus Serial-Data Input/Output, Open-Drain

8 14 SMBCLK SMBus Serial-Clock Input

— 5 ADD

SMBus Address-Select Pin. The MAX6659 is set to one of three available addresses

(connect to V

, GND, or leave open). See Slave Addresses section.

—10OVERT2

Overtemperature Active-Low Output, Open-Drain. Output is logic low only when

temperature is above the software programmed threshold.

—15STBY

Hardware Standby Input. Temperature and comparison threshold data are retained in

standby mode. If STBY is low, the IC is put into standby mode.

— 2, 11, 13, 16 N.C. Not internally connected. Do not make connections to these pins.

Pin Description

±1°C, SMBus-Compatible Remote/Local Temperature

Sensors with Overtemperature Alarms

1 2 3 4 5 6 7 8 9 10 ... 16 17

MAX6657/MAX6658/MAX6659 1

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